Use the form below to do your conversion.
Solution
Step1
Log139581=Log(9581) ÷ Log(13)
Log(9581)= 3.9814108401659
Log(13)=1.1139433523068
Log139581=3.9814108401659 ÷ 1.1139433523068
Ans=3.5741591634089
Step2
Alternatively, the logarithm can be calculated like this.